package thread;

import java.util.Scanner;

public class SleepDemo {
    public static void main(String[] args) {
        System.out.println("程序开始了");
        Scanner scanner = new Scanner(System.in);
        int num = scanner.nextInt();

        try {
            for (int i = num; i > 0; i--) {
                System.out.println(i);
                Thread.sleep(1000);
            }
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("程序结束了");
    }
}
